Most of the action scenes in the book are described as holographic scenes which may or may not be true, and creating a doubt about the X-Men's origins, loyalty or morality. It was agreed between Gambit and Wolverine that all those revelations were nothing more than lies from Bastion :

Rogue was attacked at twelve years old by a monster who was able to absorb her, took on her appearance and calling itself Rogue, meaning that the current Rogue could be something else that she is supposed to be.

Colossus possibly assisted the Acolytes at a period when they performed massacres on disarmed humans.

Beast was allegedly seemingly able to revert from normal to blue furry form. He also allegedly seemingly designed a vaccine for the Legacy Virus, but seemingly didn't went through as he refused to inject himself with the disease.

Mystique kidnapped a baby she claimed was her's, was chased by an angry mob. The baby, initially normal, immediately took a similar appearance to her (blue fur and skin with yellow eyes), questioning the fact that she was really the mother of Nightcrawler (supposedly the baby).